Results 1 to 10 of about 3,340,625 (336)

Wake development behind paired wings with tip and root trailing vortices: consequences for animal flight force estimates. [PDF]

open access: yesPLoS ONE, 2014
Recent experiments on flapping flight in animals have shown that a variety of unrelated species shed a wake behind left and right wings consisting of both tip and root vortices.
Jan T Horstmann   +3 more
doaj   +10 more sources

Ways that animal wings produce sound.

open access: yesIntegrative and Comparative Biology, 2021
There are at least eight ways that wings potentially produce sound. Five mechanisms are aerodynamic sounds, created by airflow, and three are structural sound created by interactions of solid surfaces.
C. J. Clark
semanticscholar   +3 more sources

On the autorotation of animal wings [PDF]

open access: yesJournal of The Royal Society Interface, 2017
Botanical samaras spin about their centre of mass and create vertical aerodynamic forces which slow their rate of descent. Descending autorotation of animal wings, however, has never been documented. We report here that isolated wings from Anna's hummingbirds, and also from 10 species of insects, can stably autorotate and achieve descent speeds and ...
V. M. Ortega-Jiménez   +3 more
semanticscholar   +6 more sources

Dissection of Larval and Pupal Wings of Bicyclus anynana Butterflies

open access: yesMethods and Protocols, 2020
The colorful wings of butterflies are emerging as model systems for evolutionary and developmental studies. Some of these studies focus on localizing gene transcripts and proteins in wings at the larval and pupal stages using techniques such as ...
Tirtha Das Banerjee, Antónia Monteiro
doaj   +2 more sources

Animal-Based Measures for the On-Farm Welfare Assessment of Geese

open access: yesAnimals, 2020
Currently, no specific animal-based measures (ABMs) protocols are available for geese in commercial meat production systems. Following a critical review of the literature and consultation of experts, seven ABMs, potentially valid and feasible for the on ...
Carlo Tremolada   +5 more
doaj   +2 more sources

Vocal communication in nonhuman animals: View from the wings [PDF]

open access: yesAnimal Behavior and Cognition, 2020
– Forty years ago, Seyfarth, Cheney, and Marler published two papers claiming semanticity for wild vervet monkey alarms calls. The papers arrived at an extremely interesting and active time in the study of animal behavior—a period during which ...
I. Pepperberg
semanticscholar   +3 more sources

Glossina from the Republic of the Congo: species identification by MALDI-TOF MS and research of associated micro-organisms [PDF]

open access: yesParasite
Human African trypanosomiasis (HAT) and Animal African trypanosomiasis (AAT), transmitted by Glossina species, remain major health and economic burdens in Africa. Accurate vector identification is essential for effective control strategies.
Bemba Irina Babakana   +6 more
doaj   +2 more sources

Morphology, histology, and chemistry of the wings of Tribolium castaneum and Tribolium confusum (Coleoptera: Tenebrionidae)

open access: yesJournal of Basic and Applied Zoology, 2019
Background Insect wings are an excessively diverse structures, which have fascinated scientist for centuries. Coleoptera is the largest order in the insect group and the most successful animal on earth (Nature Communications 9(205):1–11, 2018).
Nasra M.H. Zohry, Ahmed Mohamed El-Sayed
doaj   +2 more sources

Describing Textures in the Wild [PDF]

open access: yes2014 IEEE Conference on Computer Vision and Pattern Recognition, 2013
Patterns and textures are defining characteristics of many natural objects: a shirt can be striped, the wings of a butterfly can be veined, and the skin of an animal can be scaly.
Cimpoi, Mircea   +4 more
core   +7 more sources

The essential requirement of an animal heme peroxidase protein during the wing maturation process in Drosophila [PDF]

open access: yesBMC Developmental Biology, 2017
BackgroundThus far, a handful of genes have been shown to be related to the wing maturation process in insects. A novel heme peroxidase enzyme known as curly suppressor (Cysu)(formerly CG5873), have been characterized in this report because it is ...
Dondra Bailey   +5 more
semanticscholar   +3 more sources

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